package cn.tedu.ivos.audit.servicce.impl;

import cn.tedu.ivos.application.mapper.ApplicationMapper;
import cn.tedu.ivos.application.pojo.entity.Application;
import cn.tedu.ivos.audit.mapper.AuditMapper;
import cn.tedu.ivos.audit.pojo.dto.AuditQuery;
import cn.tedu.ivos.audit.pojo.dto.AuditSaveParam;
import cn.tedu.ivos.audit.pojo.entity.Audit;
import cn.tedu.ivos.audit.pojo.vo.AuditVO;
import cn.tedu.ivos.audit.servicce.AuditService;
import cn.tedu.ivos.base.enums.ApplicationStatusEnum;
import cn.tedu.ivos.base.enums.AuditStatusEnum;
import cn.tedu.ivos.user.mapper.UserMapper;
import cn.tedu.ivos.user.pojo.vo.UserVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.*;

/**
 * @author 482944566@qq.com
 * @version 1.0
 * @date 2024-12-08
 */
@Slf4j
@Transactional
@Service
public class AuditServiceImpl implements AuditService {
    @Autowired
    private AuditMapper auditMapper;
    @Autowired
    private UserMapper userMapper;

    @Autowired
    private ApplicationMapper applicationMapper;

    @Override
    public void insertAudit(Application application) {
        log.debug("为申请单生成对应的审批单业务：application={}",application);
        //1.获取审批人ID集合
        List<Long> userIdList = application.getAuditUserIdList();
        //2.遍历审批人集合，有几个审批人，就生成几条审核数据
        for (int i =0;i<userIdList.size();i++){
            //3.设置当前审批人的相关数据
            Audit audit = new Audit();
            audit.setApplicationId(application.getId()); //设置申请单ID
            audit.setAuditUserId(userIdList.get(i));//设置审批人ID
            audit.setAuditSort(i);//设置审批次序 直属领导次序为0 上上级次序为1
           //4.设置每条审批单的状态
            if (i==0){
                //0表示为第一条审批数据，直属领导的审批单状态为“待我审核”
                audit.setAuditStatus(AuditStatusEnum.MY_PENDING.getCode());
            }else{
                //1表示为第二条审批数据，上上级领导的审批状态为“待他人审核”
                audit.setAuditStatus(AuditStatusEnum.PENDING.getCode());
            }
            //5.设置创建时间
            audit.setCreateTime(new Date());
            //6.每循环一次，向数据库插入一条审批数据
            auditMapper.insert(audit);
        }
    }

    @Override
    public List<AuditVO> selectAuditByApplicationId(Long id) {
        log.debug("根据parentId查询业务：id={}",id);
        return auditMapper.selectAuditByApplicationId(id);
    }

    @Override
    public void deleteByApplicationId(Long id) {
        log.debug("根据用车申请单ID删除审批单业务：id={}",id);
        auditMapper.deleteByApplicationId(id);
    }

    @Override
    public List<AuditVO> selectAudit(AuditQuery auditQuery) {
        log.debug("查询审批单数据业务: auditQuery={}",auditQuery);
        List<AuditVO> auditVOList = auditMapper.selectAudit(auditQuery);
        for (int i=0;i<auditVOList.size();i++){
            AuditVO auditVO = auditVOList.get(i);
            assginAuditUserList(auditVO);
        }
        return auditVOList;
    }

    @Override
    public void updateAudit(AuditSaveParam auditSaveParam) {
        log.debug("更新审批单业务：auditSaveParam={}",auditSaveParam);
        Audit audit = new Audit();
        BeanUtils.copyProperties(auditSaveParam,audit);
        audit.setUpdateTime(new Date());
        //找到当前审批对应的申请单对象
        Application application = new Application();
        application.setId(audit.getApplicationId());
        application.setUpdateTime(new Date());
        if (audit.getAuditStatus().equals(AuditStatusEnum.AUDITED.getCode())){// 审批通过
            //更新当前审批单
            auditMapper.update(audit);
            //继续查其他审批单：与当前审批单审核同一个申请单的审批单
            AuditQuery auditQuery = new AuditQuery();
            auditQuery.setApplicationId(audit.getApplicationId());
            //根据申请单id查询当前申请单对应的所有未审批的审批单总数
            Integer count = auditMapper.selectRestAuditCount(auditQuery);
            if (count>0){ //有未审批的审批单
                //下一条审批单是当前审批单的次序+1
                auditQuery.setAuditSort(audit.getAuditSort()+1);
                //根据申请单ID与审批次序查出来下一条审批数据
                List<AuditVO> auditVOList =auditMapper.selectAudit(auditQuery);
                if (auditVOList!=null && auditVOList.size()>0){
                    AuditVO auditVO = auditVOList.get(0);
                    //创建第2个空的审批对象，准备更新数据库
                    Audit audit2 = new Audit();
                    audit2.setId(auditVO.getId());
                    //设置第2条审批单的状态为待我审批
                    audit2.setAuditStatus(AuditStatusEnum.MY_PENDING.getCode());
                    auditMapper.update(audit2);
                }
                //设置申请单状态为“审核中”
                application.setStatus(ApplicationStatusEnum.AUDIT.getCode());
                applicationMapper.update(application);
            }else{//没有未审批的审批单
               //设置申请单的状态为已审核
                application.setStatus(ApplicationStatusEnum.AUDITED.getCode());
                applicationMapper.update(application);
            }
        }else if(audit.getAuditStatus().equals(AuditStatusEnum.REJECT.getCode())){//审批驳回
            auditMapper.update(audit); //更新当前审批单 驳回状态 驳回原因 更新时间
            AuditQuery auditQuery = new AuditQuery();
            auditQuery.setApplicationId(audit.getApplicationId());
            //根据申请单ID 查到审批单申请单的所有审批单VO对象
            List<AuditVO> auditVOList = auditMapper.selectAudit(auditQuery);
            //判断是否能查到审批单对象
            if (auditVOList!=null && auditVOList.size()>0){
                for (int i=0;i<auditVOList.size();i++){
                    AuditVO auditVO = auditVOList.get(i);
                    if (AuditStatusEnum.PENDING.getCode().equals(auditVO.getAuditStatus())){
                        auditMapper.deleteById(auditVO.getId());
                    }
                }
            }
            //设置申请单的状态为“已驳回“，并设置驳回原因
            application.setStatus(ApplicationStatusEnum.REJECT.getCode());
            application.setRejectReason(auditSaveParam.getRejectReason());
            applicationMapper.update(application);
        }
    }

    private void assginAuditUserList(AuditVO auditVO) {
        //1.准备空集合,分别用来保存申请单对应的审批人姓名与id集合
        List<String> auditUsernameList = new ArrayList<>();
        List<Long> auditUserIdList = new ArrayList<>();
        List<AuditVO> auditVOList = auditMapper.selectAuditByApplicationId(auditVO.getApplicationId());

        for (int i =0;i<auditVOList.size();i++){
            Long userId = auditVOList.get(i).getAuditUserId();
            auditUserIdList.add(userId);
            UserVO userVO = userMapper.selectById(userId);
            auditUsernameList.add(userVO.getUsername());
        }
        StringJoiner stringJoiner = new StringJoiner(",");
        for (String username:auditUsernameList){
            stringJoiner.add(username);
        }
        auditVO.setAuditUserIdList(auditUserIdList);
        auditVO.setAuditUsernameList(stringJoiner.toString());
    }

}
